I just received my software to install Windows 7 in the mail today, and it seemed to work fine during the installation. Afterward, when it came to phase 3 of the installation (reinserting the Acer upgrade DVD), it began to malfuncton. Won't recognize CD in CD drive to install the driver software--more specifically, it will before i launch the Acer upgrade wizard, then it continually prompts me to "please insert the Acer Upgrade disc" even though it is already in the drive. After this, the CD drive refuses to respond and wont even eject the disc.Windows explorer stops functioning and must be restarted by the systemArbitrarily lagsEncountered a blue screen that said something about failure to load power plan(?, it didn't show for very long)If you could help me, it would be greatly appreciated!! Thank you for reading this!