Omg Dan you're fast in answering!
Of course, if I deactivate Pocket PCdrive Dexplor is fast as usual. I intended to say that this pcdrive working as a storage card is the problem here.
Take into account that Pcdrive is slower than a normal storage card (you were to use normal RJ45 lan, it's the same slow) and mine is 1 GB big (though only 85 MB in for now). Even with these factors, about 1 minute to launch Dexplor (complete hang of the PPC while that ocurrs) isn't something normal. I guess there is some type of 'secondary' interaction here.
What does Dexplor with storage cards when launched?
Don't forget I've got the 1.21beta version. I know you're calculating the size of the storage card to guess if it's a true storage card so here is the problem. Omg, in the end it's my fault! lol