XP upgrade from 98 will not display drives past letter i:

[Guest]

I have a customer that called in for a product my company sells, a flash media reader. The customer upgraded from Windows 98 to Windows XP Professional which may be his problem, but here is his problem. Any drive going past the letter I: does not show up under my computer or windows explorer. The reader was on drives H: I: J: K: but J: and K: did not show up. I then changed his CD ROM just for testing to letter R: and the the Flash Media Reader took G: H: I:, but J: didn't show up and neither did R: If changed back the CD ROM will work again, but I can't figure out what is causing his problems. Everything shows up under Disk Management just fine, it's accessing it that is causing the problems

Please let me know if anyone has seen this type of issue, better still, let me know if anyone has solved this type is issue

Thanks

 

[Tin]

check out registry key
hklm\software\microsoft\windows\currentversion\policies\explorer
or
hkcu\software\microsoft\windows\currentversion\policies\explorer for
NoDrives

these hex should help you determine hidden drives

A: 1, B: 2, C: 4, D: 8, E: 16, F: 32, G: 64, H: 128, I: 256, J: 512, K:
1024, L: 2048, M: 4096, N: 8192, O: 16384, P: 32768, Q: 65536, R: 131072, S:
262144, T: 524288, U: 1048576, V: 2097152, W: 4194304, X: 8388608, Y:
16777216, Z: 33554432, ALL: 67108863

I have a customer that called in for a product my company sells, a flash

media reader. The customer upgraded from Windows 98 to Windows XP
Professional which may be his problem, but here is his problem. Any drive
going past the letter I: does not show up under my computer or windows
explorer. The reader was on drives H: I: J: K: but J: and K: did not show
up. I then changed his CD ROM just for testing to letter R: and the the
Flash Media Reader took G: H: I:, but J: didn't show up and neither did R:
If changed back the CD ROM will work again, but I can't figure out what is
causing his problems. Everything shows up under Disk Management just fine,
it's accessing it that is causing the problems.

Please let me know if anyone has seen this type of issue, better still,

let me know if anyone has solved this type is issue.