Can't play SP

[-Spartan`II7^]

I installed CoD4, started downloading the latest patch and decided to play some SP while it's doing that but it doesn't work.

It says I should insert the correct disk and try again (I installed the game from this CD just 5 minutes earlier)

Thing is, it does the same with my BF2142 but other than those two, all other games work fine.

Anyone know what causes this and how I can fix it? I'm on XP.

Thx in advance.

[-Spartan`II7^]

Re: Can't play SP

Nm, I forgot I was using PowerISO to make a virtual drive and BF2142/CoD4 donesn't seem to like that.