What does this dialog tell you?
Loads of them I'll write them down, but they are mostly specific to the plugin it is loading, so let me just check so I can get you some of them... it's not a big deal because as I said it works fine most of the time, and I do think some of it has something to do with the sheer number of free plugins I have installed everywhere I have a modplug
bit overkill maybe...
So maybe the first three:
1: cannot execute modplug vsti, (I should just get it out, but I'll check if it works, not everything is ideally set up on this laptop modplug, what I did know about was clone vsts if I have two of the exact same vst in different places and modplug has them both it slows things down sometimes) press ok
 checked and yeah the openmodplugvsti I have isnt working at all... will maybe grab another or not use it
2: dumbass donationware message - press ok
3: serial number for dahornet, I keep meaning to get to that
those are just the first three, and I did try to make it clear that this only happens if I swap from one modplug to the other (by closing one down and going to the other) I dont generally have them both open at the same time, but I will check if it does that too, but it might also be because the other modplug I have is the one you are busy working on at the moment, the one you pointed me to for the midi.
 yeah it's taking its time and giving messages for the load
another message that comes up and seems quite worrying at first is that the whole thing has crashed, send a report... I click cancel and it continues loading. o_O anyways... figured that one out a while back
Anyways what I have been trying to say is I consider modplug an incredible piece of software so I put up with a few foibles here and there, this extra loading time going through each vst is one of those things I have encountered plenty of times in the past and is not something I hold against modplug in any way, if it hits I normally just try and do something else until the software is open. I generally blame myself and my vsts, for any problem