Michael,
The short "positive outlook" answer is yes, you can likely straighten it out by adjusting the standing rigging. This assumes that there is not a structural issue with the mast itself.
You will need to determine where it is out of shape first before you start adjusting things. There are many written articles and books on mast straightening/support. Your lower shrouds (fore and aft lowers) control the mid section of your mast. The uppers and fore and aft stays control the shape of the top of the mast. If tightened too much the uppers can force a compression bow into the mid section of the mast. Your staysail stay can produce a forward bow into the mast, your running backstays are there to counter that.
If your bend is at mid mast, try loosening the lower shrouds a little on the side the mast is bending towards, then have a look to see if the mast straightens up. If the bend is above the spreaders try adjusting the upper shrouds a little.
Kevin
