Hi 4BYE, and welcome to the forum!
Could it I have to update the S-ATA driver 1.00.0.26 from ASUS.
In my hardware it says now under SCSI and RAID-controllers:
WinXP Promise FastTrak 378 (tm) Controller
WinXP Promise RAID Console SCSI Processor Device
both with driver 22.214.171.124 Is this correct?
Yes this is correct. No, you do not need the S-ATA driver, which you cannot install anyway since your Promise chip is in RAID mode.
have my programs on a single disc (ide)...I have two discs (300 gig) as a stripe on the extra RAID IDE and two 120 gig discs as a mirror for my software/files etc. The problem i encounter is that I ALMOST DAILY HAVE TO FIX THE MIRRORED ARRAY.
Let me see if I've guessed your config right:
PRI_IDE master= IDE OS HDD
PRI_IDE slave= empty
SEC_IDE master= CDROM
SEC_IDE slave= empty
SATA1 & 2= empty
SATA_RAID1 & 2= 2x 120G SATA in RAID0
PRI_RAID= 2x 300G IDE in RAID1
That sounds like you have 6 drives in your machine. One thing that can cause RAID array dropouts is insufficient output from the power supply. With 6 drives you'd easily be a candidate for a good reliable 550W supply like the Antec Truepower 550W, especially if you've got any 3.xGHz CPU or a Prescott.
??So please tell us about your power supply, and also your CPU; the model numbers of the RAID drives might also help a bit.
There are other causes too, everything from the hard drive firmware sending it into "acoustic suppression" mode, to timing differences between the drives, or software or BIOS bugs. You're on the latest software & BIOS, so there's no help there. RAID on IDE when you have only one IDE port is not very efficient, due to the sharing of the cable, and except for the power supply issue, this is the only other thing I can think of that may be at the root of your problem.
Only other idea is whether your BIOS might be old. Latest version is 1017. The Promise BIOS won't likely change, but there could be effects from other minor changes elsewhere in the general BIOS, so if you need to update, please see the thread, Asus P4P800/P4C800 Series: How to Update BIOS
for helpful hints.