Quote from Praqoon
Thanks for the lesson in JAVA versions. hehe
Actually, on my Slackware64 13.37 it's the other way around. If I have JRE installed Minecraft simple refuses to boot. I've also had friends running Ubuntu with exactly the same issue(s)... once JRE was removed everything worked perfectly. My apologies for assuming.
That's rather odd. I have both installed here on Ubuntu, but I always assumed that JDK relied on JRE; not the other way around. I'll have to use a VM to mess with this.