I just installed the game yesterday, and I've read up on the jelly texture issue, but mine goes a bit further.
I do have the texture issue with the jellies, but additionally my player character's body is also suffering from the problem, as well as the monsters seen in the picture. I haven't gone further to examine if every monster has a texture problem, since this is kind of bothersome and I want to fix it first. I am running the game on a laptop, but the specs are a non-issue, the video card isn't integrated, I already tried updating my drivers, and my Java is the current version. Should I go ahead and try to reinstall the game, or is there someone else I should try first?
What is the video card though? Also, are you using your laptop vendor's drivers or the video card brand's drivers?