so... I have such problems with inspiron 1520 too...
few monts ago I byed a new laptop. because I hate windows vista, at first i created windows xp sp3 boot disk with sata and other drives (with nlite) and deleted all partiotions from hdd. then created primary ntf for win xo, primary the for linux and for logical common uses (movies and etc). that was ok for some time. I but some-how I pressed dell's media direct button - and this sh1t destroyed my all file systems. Ok, then I reinstaled all my systems. Some days ago, my 2 years kid fouded my laptop on the table, and pressed this button again.... #$***^^%% !!!!
So... then I under the linux bootable dvd formated the disk drive with low level, and then installed test windows xp version. but media direct still appiers. seems this evil (MD 3.*) is located somwhere in bios or something. then i decited to turn of this button. I opened a small cover and cuted the wire in plate. It tooks for me about 30 minutes (now I could do this durring 15 mins). Now i thing everything will be ok
