hello to all, My daughter's PC is a matsonic board, and an Athlon 2000 cpu with 256 ddr ram. It has 2 HDDs, on a 40 gig maxtor partitioned at 5 gig c drive, and a 35 gig d drive. There is also a 30 gig Fujistu HDD. A CD rom and CDRW drives. for some reason , the D and E drives appeared to have swapped the files that where on them, and the Fujitsu drive diasappeared from the system. On boot up, the following message came up Secondry master HDD error Pri slave drive atapi incompatable Sec slave drive atapi imcompatable F1 to resume I've stripped out everthing but the 40 gig maxtor and ran scandisc, on C, no errors or bad clusters D drive stopped scanning for some reason, and I'm trying to run it again. after which I will format D and start putting back drives as and when I get it to work correctly with only one HDD in. any advise or suggestions? Billy --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.561 / Virus Database: 353 - Release Date: 13/01/04 Regards, John Durham (list moderator) <http://modecideas.com/contact.html?sig> Freelists login at //www.freelists.org/cgi-bin/lsg2.cgi List archives at //www.freelists.org/archives/pchelpers PC-HELPERS list subscribe/unsub at http://modecideas.com/discuss.htm?sig Good advice is like good paint- it only works if applied.