i have a ranger/rogue character, levels 5/2 respectively. i can cast every level 1 ranger spell except summon creature. i can memorize it, but it shows up pale when i go to the spell casting screen. any one have a clue?

You need to have a high enough wisdom to be able to cast ranger spells. Now since you say you can cast other 1st levels this is strange. You also mention you can actually memorize this spell too...perhaps it's a bug?