|Try reinstalling the video driver. Download the latest one.|
I believe the correct resolution for your notebook is 1366x768, not 1024x768. You should be able to select the correct resolution after reinstalling the video driver.
HTPC | Pentium M @ 2.82GHz, 2MB L2) | 4GB | 1.0TB | Radeon HD5750 | Blu-Ray
Win 7 Pro | HDMI out to Onkyo TX-SR707 receiver & Samsung Series 5/63"