Try this
put the whole HID set up back together and when you try an start the bike switch everything off
heated grips,
fog lights,
switch the lights to low beam,
any sat nav etc all off
any other add on electrical gadgets you may have turn them all off
the idea here is to reduce the impact on the canbus on start up.
Then start the bike.
I even wait for mine to cycle through its check routine before I hit the starter button.
sounds to me its your canbus saying no to the HIDs after you have left it for a while over winter.
If this fails you may want to try a recharge of your battery and then follow the procedure above.
It can be a fine line with the HID's and the canbus on start up, but turning everything else off before start up should help.
I somtimes get a LAMPF warning if I dont do the above but a restart with everything off cures it. you will get used to the procedure to the point it will be second nature in no time and you will do it every time

If this doesn't work you may want to contact Les Wassel of this parish this fella knows his stuff when it comes to HID's top bloke!
