what does it mean if your cassette deck playback and recording sounds warbly?

I hope it dont have to send it back; it looks great, and plays cds as well. but, i dont want a defective deck.

@russ69 ok man. stop trolling my threads with negative comments. You are being a jerk

Troll?
How does telling truth equate to that?
If you don't want to hear that the deck is more likely to be the problem than the tapes are, just get used to it.
Instead of juvenile name-calling.
Abrupt language is NOT negative.
Why did you buy a new deck anyway?
Hopefully to insure against manufacturing defects. Too high a price to pay for me.

@fuzztone the reason I bought a brand new deck is because i wanted a perfectly working deck. didnt happen

i dont want a moron on my thread dissing stuff I enjoy.

You said something about juvenile name calling; he said "sucks" twice.

I'm the same way with some things. I was looking at a NEW Tascam Cassette. The wife has a slough of her old cassettes. 

A little update too.. It's not your thread.. BUT it's nice to think that, just on loan, kinda', sorta'.

The words are yours right up until you hit "Post You Response".

Regards