hey there b(.)(.)by-t-rap,
I'm just thinking that the files are corrupt and hence the checksum errors. Don't know where you got them from, and it has happened to me in the past with q3a pointreleases until I actually found the ones that worked.
I currently am still uploading the pointreleases to my webhosting, but you can take a look at
http://www.slackmagic.com/gaming/q3a/pointrelease/
in about 30 minutes and it should have all pointreleases there.
Use
linuxq3apoint-1.32b-3.x86.run as that has some major fixes about mouse issues you more likely will face with the other previous pointreleases. However, I've included most of all recent pointreleases for you just to be sure. The rest is up to you :P ----- happy fragging