Certificate problem

[Richard]

Hi, I'm having a problem since a couple of days. I was hoping it'd resolve itself, but it didn't.

The last few days I didn't use my PC at all, only my laptop. Whilst browsing the net, I found myself unable to access some sites(including hyves.nl and my gmail(google is working but gmail isn't..)). It tells me that they site has a certificate which is out of date and that the certificate will be valid on 7-3-2008(like, wtf) for hyves and 2-5-2008 for gmail(again, wtf).

With this problem, I also cannot get MSN to work. When I run the check, it says that my IE offline settings are wrong. I clicked the link where I could find the solution, and did what it told me. The sites now work again, in IE. Now, the problem is, I use FF as my standard-browser. In FF, I still have the same problem. I cannot find the setting to fix it(as that's the problem here too, I suppose).

What is even more odd, everything works on my PC, just not on my laptop.

Edit: I also noticed that(again laptop) it thinks that all the programs I have are 'newly installed programs'. It also think mIRC is new, for example(I seem to have a new trial for it).

My question is, does anyone know which setting(including where exactly to find it) I have to change in order to get it to work?

Thanks,

estroe