How do I fix it? It's in a purl portion of a basketweave pattern.. I don't want to tink back since the pattern is working w/4 strands of yarn at a time; what a mess that would be. Can anyone tell me how to weave the dropped stitch back into the pattern so I can replace it on my needle? Please???!?!
The easiest way to do it is to use a crochet hook. There's a video here that should explain it, but in case you can't do video either (we're stuckl on dial-up):
look at the work; which side needs the purl bump?
pick up the dropped stitch with the hook, holding it on the OTHER side
stick the hook all the way through the dropped stitch, hook the "ladder"'s next rung, and pull it through.
That should put the purl bump on the proper side of the work. It's much easier to do than to describe. Once you have the work and hook in hand, it's obvious (and way easier than tinking!)
You'd use a crochet hook to bring it up. I find it's easiest to work on the knit side, so use the crochet hook on the back for the purl section and bring up the stitch. Then flip it over and bring it up for any knit stitches you might have missed. It'll be a bit tighter than the other stitches, but it will even out.
Put point protectors on your needles with all sts held except the one directly above the problem. Unwork all the way down to the problematic st (it'll look like a ladder), and then as noted by others, rework all the way back up. Just make sure you work a stitch for each row (K or P...I also prefer to work on the K side as it's akin to making a chain st). You'll also need to ensure your hook is grabbing all the appropriate strands for each row given you're working multi strands.