visual basic error, please help

i have a problem listed "instruction at 0x00425850 referenced memory at 0x01341f74 says memory cannot be read,

this happens when i try to log into yahoo now??? what do i do

 

Sounds like a a memory address problem
your cpu has sent a request to go to a certain address in memory to access some data and the data that is in that address does not tally with what should be in there.

 

So what do i do about it?

 

This fault can be a whole lot of things,ensure you have latest updates from microsoft, problems can also arise when diffrent programs conflict with each other ,have you recently loaded new a program/software
it can also be faulty memory you can check it out with this

http://www.majorgeeks.com/download1247.html

 

it happened when i was chatting on yahoo instant mess ...and my computer completely froze up, had to hard shock it and when i signed back in, it was doing this