video problems - FIXED, but don't know why

In case anyone should find this useful, here's how the video problems
described below got fixed.

Something had given me the hint that re-installing the free SNAP video
driver - using identical steps - didn't give identical results. So I
tried the re-install several times, and the last time suddenly the screen
stayed painted and responsive, with all the expected options. I have no
idea what changes actually occured to finally make things work. This
means I haven't learned as much as I'd like.

- Dushan

Earlier, I wrote:
| I seem to have hit upon an inexhaustible fount of obstacles. Here's my
| latest - just the highlights.
|
| A week or so ago my SNAP video driver demo expired, so I D/L'ed (after
| many tries - a separate story) a specific SNAP driver for my video chip,
| and followed the simple instructions. Everything looked fine, the SNAP
| splash screen displayed... then a message 'Invalid Scan Frequency', and
| the screen went black, and stayed that way.
|
| I finally booted in single-user mode and checked xorg.conf to see if some
| parameters were out of whack. They weren't, but selecting known-good va-
| lues didn't help. I looked at several other files but couldn't recognize
| anything that looked suspicious. Then I D/L'ed the glint driver (for my
| 3DLabs Permedia 2 chip) and tried to install it, but that failed because
| of unresolved dependencies: libc.so.6(GLIBC_2.4) and xorg-x11-server-Xorg.
| From what I could tell these totalled about 20 MB in size, with no gua-
| rantee they were the end of the dependency line.
|
| I know I can re-install yet again, but before I do, is there something
| simple I've missed that I should try first? Thanks.

.

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