Crashing - Dual Instance - Windows 8.1

I have been having periodic crashing over the last few days.  I run two instances on the same PC. 

It occurs every time I do the following:

Use a Warp scroll - Home Point in Upper Jenuo at crystal

Zone into Abyssea

It occurs sometimes when doing the following:

Zoning into Mog House in Jenuo

Running across zones in Jenuo

It has not happened:

Warping to Abyssea crags from Jenuo

Using "Repatriation"

I have tried 4.0 and 4.1

Three major changes have been made recently:

1.  Windows 8 changed to Windows 8.1

2.  Graphics card changed from GeForce 470 to GeForce 660

3.  Changed from traditional HDD to 6/Gbs SSD

Running the following:

AddOns - None

PlugIns - BoxHelper, Distance, PetTP, SpellCast, TParty

I have had this error even with removing all PlugIns except SpellCast. 

I have updated my graphics card drivers.

This does not happen with a non-Windower instance

It does "seem" to take longer to occur the less PlugIns I have loaded, but I have no data to back that up. 

Can someone point me to the error / dump logs?  I seem to be over looking how to find / turn them on. 

Any suggestions greatly appreciated. 

I am also getting "Could not execute1 init.txt - file not found. - 2 

When launching Windower.  Could that be related?  How can I get WIndower to output an error log?  

If you're using Windower v4.1, you should make sure that you copied your init.txt into the v4.1 scripts folder. I have had similar issues with crashing on v4.1 lately, and we're working on it. I'll post when it's fixed (for me, at least).

Excellent Byrth!  Thanks for the reply.  I'm just glad to know I may not be alone.  I will copy over the missing file, and I will make sure to post back in any of your updates fix my issue.  

I just wanted to post an update that things have now gotten worse.  In addition to the crash everything I zone into my mog house, use a warp scroll to take me to Jeuno, or run in front of the Marble eatery; I now also simply freeze.  The game will kick out a "...is not responding error" after I click the screen, and I have to kill the game and log back in.  Windower is pretty much not working for me now as I have log both my characters in a sum of four times just to get into Abyssea.  I have enabled logging, but cannot seem to find where the log is out putting to.  Can some one point me in the right direction?  

Thank you

Currently I feel the right direction is to head back to v4.0 for the moment.

The problem is better for me right now and I haven't managed to deadlock myself in the last four hours, but v4.1 is probably still more stable.

I have been playing for about four hours now, and have zoned many times trying to reproduce the crash, but it appears all is now well.  I'm not sure how many people will have the same issues as I have had, but considering 8.1 is a free upgrade from MS I thought I would make sure to post my fix here just in case.

 Also, I should note that a large content update was released today, and I did not try to play after the patch.  So, all of this could be for nothing, and the update today simply fixed my issues lol.  But, if you are having similar issues as mine give this a try.  Takes about an hour depending on your PC speed, and Internet connection.  

Thanks