I have just replaced my hard drive to 80 GB. BIOS is detecting new hardware. I tried to partition using win 98 bootable cd. I made all partitions from primary to logocal but It fails to install operating system. When I delete all partitions and directly start making partitions from win xp bootable cd, I can't choose partition size for primary partition or C:. What I'm trying to do is I want 50% for C: drive and 50% for D drive:, but C: drive is already having 99% of space of 80 GB. I can't change or adjust any size...