All the quest descriptions are gone! The titles to each quest are still there in red, but there is no description underneath them. The diary itself is still there, you can read each page, but the section where it tells you which quests are still active is gone. I can reload an old game and everything is fine, but my current game (50 days later) is f'ed. I think I might be too. If anyone can help I would really appreciate it!

Two things, Morrowind or Oblivion? I don't remember a active quest part in the Morrowind diary, I could be wrong. Are you using any mods? Some mods have unknown bugs.

I would think he is talking about Morrowind.

Some people post in the wrong spot sometimes. Is there a active quest section in Morrowind?

There is a Show All/Show Active filter in the Quests section.

Sorry, yes I'm playing Morrowind and yes I meant the show all/show quests log.
here are a list of my mods
I've also got misty's better morrowind mod.
Game Files]
GameFile0=Bloodmoon.esm
GameFile1=Morrowind.esm
GameFile2=Tribunal.esm
GameFile3=The Wilderness Mod 2.0 T & B.esm
GameFile4=entertainers.esp
GameFile5=AreaEffectArrows.esp
GameFile6=bcsounds.esp
GameFile7=master_index.esp
GameFile8=adamantiumarmor.esp
GameFile9=EBQ_Artifact.esp
GameFile10=Siege at Firemoth.esp
GameFile11=Better Bodies.esp
GameFile12=ale_clothing_v0.esp
GameFile13=Syc_HerbalismforPurists.esp
GameFile14=Syc_HerbalismforPurists_BM.esp
GameFile15=Syc_HerbalismforPurists_TB.esp
GameFile16=ale_clothing_v1.esp

Try disabling one mod at a time and each time see if they come back.

Nah, disable them all, and see if quests display properly again. If they do, then enable them one at a time.

I suppose that would be better... Do which ever you wish.