I'm pretty sure it is something in my guitar but what? I say I'm pretty sure it's the guitar since it hasn't happened with any of my others, that i can remember, playing through the same gear and i have tried different cables so unless both cables just so happen to be broken and it's just coincidence that it happens when I'm using the guitar in question (Ibanez btw, that post about quality might be true it seems ☹) I'm sure it's the guitar ?
Here is a clip so you can hear what i sounds like.
http://www.box.net/shared/ggyui10gr6
It sounds like a super super bad tremolo/signal dropping in and out.
I've opened it up to check wiring and everything looks 100% but I have no experience with wiring so i was just going by if i could see anything blatantly wrong.