Hi ryn2001...and welcome to the forum!
I apologise that noone has responded to your post earlier, but I'm also very glad to see that you've come to us
after Dell...shows us that we must be doing
something right
Anyway...in regards to your question - the lens cleaner will definatly not screw up your dvd drive...and i was going to suggest it if you hadn't already thought of it.
Let us know how you get on, and if it doesn't work we should be able to give you a bit more of an idea as to what is happening.