All right, sorry to take so long to respond. I had several busy days.
Yesterday I spent about four-five hours in a cleanboot. During that time period, Yahoo did not crash.
Went back to a regular boot tonight and Yahoo has crashed six times. I originally thought it may have been Yahoo Updater, but apparently that is not it as Yahoo Updater is not running and the problem is occuring as randomly as ever.
This is the error message in the event log:
Faulting application YahooMessenger.exe, version 8.1.0.421, time stamp 0x46d76392, faulting module MSVCR71.dll, version 7.10.3052.4, time stamp 0x3e561eac, exception code 0xc0000005, fault offset 0x00011e30, process id 0x16c0, application start time 0x01cc99e137035fa6.
+ System
- Provider
[ Name] Application Error
- EventID 1000
[ Qualifiers] 0
Level 2
Task 100
Keywords 0x80000000000000
- TimeCreated
[ SystemTime] 2011-11-03T04:33:00.000Z
EventRecordID 42239
Channel Application
Computer
Security
- EventData
YahooMessenger.exe
8.1.0.421
46d76392
MSVCR71.dll
7.10.3052.4
3e561eac
c0000005
00011e30
16c0
01cc99e137035fa6
I've also found that my mouse is noticably slower with the full boot up. When I was in the clean boot, the mouse was significantly faster. I found that this .dll file mentioned had something to do with the mouse. Could this be an indication of something wrong?