I may have just gotten dumb about such stuff...there's days I feel like I'm still a real whiz with computers, but I may just be too old to grasp the Linux workings any more
Every now and then I take a new attempt at adjusting my Ubuntu box resolution. The monitor is 1280x1024 @ 60 hz and the display card is an NVIDIA 6800 series fanless. I know for a fact the card works in NT4 for instance.
I can get 800x600 and some weird 1152x res that the monitor doesn't support well (it's a basic good quality 19" Viewsonic TFT), but never the right resolution. I've had people write me new xorg config files and I've written my own as per the directions show and everything in between, but no dice. It simply will not work in any other res on Ubuntu. I've managed to screw up the system so well it's just booted to some text interface error messages that I can't get fixed and lack the knowledge to circumvent the loading of the conf files (I've tried restoring the file from command line, there's guides for that too, but no.
It just always manages to make me feel so damned stupid about computers every time I use it. And most of my hardware it won't recognize anyway, but that's partially my own fault because I've chosen pretty much windows-geared hardware. For instance I could not get it to understand the differences between FW800 and 400 ports, and maybe as a result I never got it to accept DV transfers over IEE1394 line. Nor did it comprehend the SP/DIF multitrack transfers via lightpipe although the card functioned well. But I did manage to get drivers for the soundcard (although I had to compile the drivers myself from binary to get that) but that went awry when I managed to screw up Synaptic somehow when the machine decided to reboot in the middle of installing some upgrades and after that went into infinite loop...
Well, in short, my usage experiences with Ubuntu have been, to put it mildly, very very challenging and the sort that always makes me feel like I have no idea how does the system really work. Almost nothing save for basic printers, mice etc. seem to work, or they work partially. Whereas in Windows I've pretty much never had any problems with any such things, they just tend to work.
But, it may be simply too much of a jump for an old PC dog to handle...too much new info needed.