Alright. It seems that there are no older drivers available. So other alternatives needs to be found. So lets get started.
I did a little bit of research for the ELSA card that you have, and after an hour I nearly gave up, but I found something interesting!
ELSA VICTORY Erazor, NVIDIA RIVA 128 Controller, PCI/AGP, 4 MB SGRAM
I guess this is the card you have. There's no Windows 3.11 driver available for this card other than the reference one that we already have. The 1.27 one. The bad news is that it's nearly impossible to get the drivers from the ELSA website. They don't provide drivers for their older cards. Also it's hard to get information for this graphics card. The good news is I found the official drivers that came with the card, but no Windows 3.11 ones. So you have to deal with the Windows 95, 98, NT3.5 and NT4.0.
Here are the files that I found! I recommend you to make a backup of these drivers immediately you download them. You never know when you need them in the future! They are rare to come by, and these mirrors might be down after a year!
BIOS files
ELSA VICTORY Erazor, BIOS flash utility with binary v01.55.00
VERABIOS.ZIP
CRC32: 73D30740
MD5: CFC31DC4207EE4B878B859BA09C66021
SHA-1: EA711FFCDB5B91A4BC566EB9D0DD4DBF13B998B3
ELSA VICTORY Erazor, BIOS flash utility with binary v01.55.00, use only if BIOS is corrupted, see README.TXT
VERA_UPD.ZIP
CRC32: 19CC5465
MD5: 7BCC540064A3401540DE2D867B1C6221
SHA-1: 24EA9806E4CCCCF0968FDDC43D06C7F7869E6D75[/i]
Utilities for MS-DOS
ELSA VICTORY Erazor, TV mode switch utility
VERATV.ZIP
CRC32: A4043C6A
MD5: 585A73760FBDEEE21FC561D0FFE6C1E9
SHA-1: 02143FCFE26D88098509FB1632B2AA03B01783CD
Drivers for Windows 95 and Windows 98
ELSA Windows 95/98 Driver Disk, ver 4.10.01.0303-0004
VERAW9XO.ZIP
CRC32: 77378F06
MD5: D21FD35705E18C4132BA9FD4400E864A
SHA-1: 06690E5A06F8FBA107B25ABA1B8CF3BDD8302D9E
ELSA Windows 9x Driver Disk, ver 4.10.01.0401-0005
VERAW9X.EXE
CRC32: 65E03A7F
MD5: 18AB17452763C93EA768956D2275C7BD
SHA-1: AE6C174B7DEF779D99D7EF6AED82C0E1CE2F3398
Windows NT drivers
ELSA VICTORY Erazor, Windows NT 3.51 driver for i386 CPUs
VERANT35.ZIP
CRC32: 4AEFC576
MD5: 318C62C185FD4A4442BD7D9F996CE1E3
SHA-1: 2BC10D41843CEC8D436E23F61BA74C9BA70EEC6F
ELSA VICTORY Erazor, Windows NT 4.0 (built 1381.) driver for i386 CPUs
VERANT40.ZIP
CRC32: 62460EEB
MD5: 9E8DC5A8A30C1ED3766E85C804EB89C6
SHA-1: D1A8C204EDFD13CD705875972050BB1C7C4FAE99
I packed them up and uploaded them to Mediafire so you can get them if you are interested in them. Maybe these will fix the problem that you have with the reference driver. The link to get all these goodies is:
http://www.mediafire.com/?5rz435q8p3sunfg
Filename:
Elsa Victory Erazor - RIVA 128 Drivers.rar
CRC32: 9C1EB79A
MD5: 2E0CE4964DDA6AB721759D571793D437
SHA-1: 185EAB1C980D46A593ED20CF9843BDAA299CA3FE
The archive is signed, so it comes from me, you can check it in WinRAR under the Info button. Also it's a solid archive and has recovery record, and it's locked. You can scan it at VirusTotal if you don't trust the file.
As for the Creative Labs card I need more information. I need the model number like CTXXXX where the X is a number. Hope these helps to solve the problem under Windows 98. I will check back soon if you need drivers for the other card.