theres a new release of tk tile package source: and release notes said:
Tile 0.8.4.0 is a checkpoint release, matching what is included in Tk 8.5.9 (including all bugs). It will most likely also match what is eventually to be available in Tk 8.6.0. must be analize and revise. could be this bug fixed in newer version Lenz McKAY Gerardo (PICCORO) http://qgqlochekone.blogspot.com