My goal: tri-box.

So oddly enough, when I don't run Maximizer, I don't crash.

When I do run Maximizer, I do crash

My specs are:
OptiPlex 740 Minitower,Athlon 64 X2 4200+(2.20GHz,512KBx2)
2GB,Non-ECC,667MHz DDR2,2X1GB Dell OptiPlex 740
256MB ATI RADEON HD 2400 XT Graphics dual DVI or VGA (TV-out),Full Height,Dell OptiPlex
160GB SATA, 7200 RPM Hard Drive with Data Burst Cache Dell OptiPlex 740

Running a 22" flatscreen dell @ 1680 x 1050.

Seems like my video card is the suck. It glitches the graphics every so often.. indicating that it is maxed?

What would be a cost effective solution? (Sub $300 range)