Major Computer Lag, please help

[sk1tz0frenic]

My computer lags horribly when I try loading something with a decent amount of graphics.  The mouse will move extremely slow and the computer will just... stop mostly.  It does this both when and when im not connected to the interent.  I have tried defragmenting my computer, clearing it, there is very little programs on it.  When I am connected to the internet (dial-up) and it starts lagging like this, say im playing a game or just trying to load something it lags very bad and disconnects me from the internet.  I dont believe its my interent connection because i have tried many different dial-up companies and same problem, also it happens on normal games when im not connected.  Any and all suggestions will be appreciated, please help.
Nicole

[Flame]

Have you scanned for viruses and Spyware?

[glb]Flame[/glb]

[merlin_2]

Well did you do what flame said....!!

[sk1tz0frenic]

Yes I have scanned for viruses and ad-ware

[merlin_2]

Update modem drivers.......system info is........

[sk1tz0frenic]

Exactly what kind of system are you asking for...other than the os, which is xp, and I doubt updating the modem will effect my computer, considering that the internet has no effect in the performance of my computer when it is in that state.

[sk1tz0frenic]

I just finished running an ad-aware program..ad-aware, and it got to about 50% and froze on me due to the lag

[Fed]

When your computer is 'at rest' check your cpu usage in your task manager. Ctrl+Alt+Del.
It should be very low.

[Raptor]

Has it always done this?

My computer lags horribly when I try loading something with a decent amount of graphics.

What are your system specifications?

[Mac]

A lack of RAM could be slowing you down. My own computer is slow when using dialup. Broadband is the only real answer.

If you type - cmd - in the Run window and then type - chkdsk - at the prompt do you see 4096 bytes in each allocation unit on the screen?