erratic behaviour after power outages

[hilli]

I am having some strange problems.... the power snapped off in the neighbourhood causing restarts of my computer.  I have no idea how many times it happend.. My symptoms are varied and intermittent:  the wacom tablet freezes but I can use the regular mouse;  I can access MSn but not google: my monitor blinks brighter in the blue menu areas,  photoshop froze when webroot started a scan, and when it ended, the photoshop workspace was missing except for the images and the palettes!   it was still frozen an hour later.  when my monitor flickers, my cpu fan seems to change momentum...
i did a check for damaged ram and that seemed fine.  this morning the computer was its spunky old self, but then after an hour I had trouble receiving email and accessing sites...... verrrrrrry slow.

are these symptoms of the beginning of the end??    is it just the power supply? or are these virus spyware symptoms?   I keep getting clean scans with webroot and trend micro.  I finally uninstalled adaware and spybot and microsoft beta in case they were conflicting. they didn't find anything either.
I don't want to ahve to reformat my drive if I don't have to.

help!

[unlovedwarrior]

spybot adaware and windows wouldnt conflict..

did u have a surge protector with this happened?? did you do all of the scans in safe mode with system restore off??

[GX1_Man]

The power supply and/or motherboard could have been damaged, but we have absolutely NO info about your machine. See below.

[hilli]

yes I had a surge protector on but not a UPS. that is in place now.

yes I did the goldmemory scan in safe mode , it does it all by itself, otherwise I don't know how.
the antivirus and antispyware scans are just run as usual, on a regular basis, and are up to date.
I re:installed adaware and ran that and it claims things are clean.

my computer info is:
Windows XP Home Edition Service Pack 2 (build 2600)   No details available
Processor a   Main Circuit Board b
2.40 gigahertz Intel Pentium 4
8 kilobyte primary memory cache
512 kilobyte secondary memory cache   Board: ASUSTeK Computer INC. P4PE REV 1.xx
Bus Clock: 133 megahertz
BIOS: Award Software, Inc. ASUS P4PE ACPI BIOS Revision 1002 10/28/2002
Drives   Memory Modules c,d
81.95 Gigabytes Usable Hard Drive Capacity
31.03 Gigabytes Hard Drive Free Space

HL-DT-ST DVDRAM GSA-4167B [CD-ROM drive]
3.5" format removeable media [Floppy drive]

Maxtor 6Y080L0 [Hard drive] (81.96 GB) -- drive 0, s/n Y30G92CE, rev YAR41VW0, SMART Status: Healthy
SCSI Disk Device -- drive 1   1024 Megabytes Installed Memory

Slot 'DIMM 1' has 512 MB
Slot 'DIMM 2' has 512 MB
Slot 'DIMM 3' is Empty
  Local Drive Volumes
    
c: (NTFS on drive 0) 81.95 GB 31.03 GB free
 
  Network Drives
  None detected
RADEON 9100 Family (Microsoft Corporation) [Display adapter]
ViewSonic P95f+ [Monitor] (17.7"vis, s/n 33M030202043, January 2003)

WinXP Promise FastTrak 376 (tm) Controller
Intel(r) 82801DB/DBM USB 2.0 Enhanced Host Controller - 24CD
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C2
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C4
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C7
NEC PCI to USB Open Host Controller (2x)
Standard Enhanced PCI to USB Host Controller  

VIA OHCI Compliant IEEE 1394 Host Controller
American Power Conversion USB UPS
HID-compliant device (2x)
USB Human Interface Device
Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
HID-compliant mouse
Generic USB Hub
USB Root Hub (7x)
MTP Device

All required security hotfixes (using the 02/14/2006 Microsoft Security Bulletin Summary) have been installed.

and a lot of software