Can anyone alleviate my suspicions?

Hi, I have a couple of questions about security and viruses.

I have just split with my boyfriend who knows a bit about computers and I have suspicions that there is a possibilty that he could somehow know who i talk to on messenger and what is said. There are comments he has made that he could only know if he knew what I had written on messenger (could be coincidence though) and he has implied to me before that he knew how to track messenger, but i just thought he was showing off.

If this is the case how far could someone go if they can somehow track your movements on your pc and what can be done about it.

He also put some memory in my computer and took out the old memory which he put in a friends computer. Her computer then got a really really nasty virus a couple of days later, when she has never had a problem before. He went a few days later and spent a good few hours sorting out her virus (why he would do this I dont really know) but she told me recently that her computer was still playing up so she took it to PC world (who I realise dont always know what they are talking about) who told her the virus wasnt completely gone and that it had got into her PC on the memory. This being the memory that came out of my pc fine and into hers infected.

I know this all sounds a bit daft but I am just wondering, I am not usually a suspicious person and I am kind of hoping you will all point and laugh at me for being so silly.

Thanks for bothering to read my paranoid mutterings,

ernielou

 

Oh I forgot to add that I got the upgrade of internet explorer around the same time he started mucking about with my computer and now usually when i close explorer I get 2 message boxes, the first one says

the exception unknown software exception (0x0eedfade) occured int he application at location 0x7c812a5b

followed by:

runtime error 217 at 032BF48E

I have always presumed it was the upgrade but wonder if it is to do with something else now as whenever I mentioned it to him he didnt seem interested and usually if a computer did something odd he would sit tinkering for hours until he found out why, which i always thought was odd for him to not try to find out what it was.

 

thanks for your help, I have just gone to change the passwords and I have an account in there that I didnt set up, called SQLdebugger which is a limited account and is password protected.

I am doing a software development course at the moment, (only just started) and have had to install pascal, vb.net and macromedia, so could it be something to do with those applications?

Thanks

 

thank you, umm... i think i need a slap...i have lifted the pasword off it about two minutes ago, cos i was fiddling and couldnt understand why it wasnt coming up on the user accounts screen.

I am having trouble with my vb.net and getting stuff to run anyway although that may be me, do I have to re-install vb.net now or can i fix it?

I should not be allowed near computers sorry

 

I have read that again, twice, and am still not quite sure whether I actually need it or not or what it is, when i first read it i thought vb.net wouldnt work at all without it, but now i am not sure whether it matters.

 

Sorry, will do as you say and thank you.