After installing Portal (part of The Orange Box from Steam) it now just comes up with an error message after about 30 seconds (not reaching the main meun) saying:
Portal: hl2.exe - Application error
The instruction at 0x00010095 referenced at 0x2608Z5A%. The memory could not be written
Click OK to terminate the program
what does this mean and how do I solve it, I will give rep to the first person that solves this, thank you sooooo much!!!