Issues.. aplenty...
Dark, could be ati issue, but sounds like a driver issue (get the latest from the site of your card mfgr, try that, try a few older ones if that dont work, but so far the newest one from site, not from windows driver search, has worked when thatis the issue). You really need to eliminate what it is not, to find what it is. could also be updater. I have the ATI issue, where things close in wilderness are dark... but far away is ok... actually too bright far away because I turned up brightness to see close. But livable.
Chat. As mentioned, can resize window, also can /clear to clean it up BEFORE you talk to them... helps with scrolling for me. and the main thing.. learn where your chat logs are, and look at them. You can do it ingame if you are in windowed mode. I have to do that about once a week.. not often.. but wow, that helps.
Movement. Both ingame(options?) and on site.. not sure if planeshift.it, or PSwiki, there is info on movement. I also have put some links at the Yliakum Visitor's bureau (see link in signature). It is not an official site, but has some how to's like "how not to get lost so much". It is a start, and easier to drop the link ingame quickly... "goto yliakum.com click on how to not get lost so much" rather than "go to PS forum, and search for the topic and read all 100 returned responses" or worse.. trying to type out the URL of official link. and hope they dont miss a number when retyping it...
We need more poeple to drop the links to the official threads that explain things, as well as explain it for the new players. I have been told that some did not even know PS had a forum, until they got directed to it from there.
be sure to check out the About and the Links pages for more info.. I hope that helps.
Finally, most of these complaints are answered in detail in the technical help section of this forum. of course they may be hard to find, as there are so many posts.. but they are there.
Oh, and for the flamers, this is not to replace this forum, Planeshift.it or the PSwiki, this is to direct people to the right spot of those sites. Read it, I do not want to recreate any content if I can just link to it. This is also NOT a guild or anything official, just a site that started by me using it to help people with the OOC stuff so i could get back to the IC stuff quicker.