In order to enable new "full screen" (LDLS3-style) reverse interlinear functionality, 4.0c Beta 1 will download ~400MB of updated resources. (This will probably be increased in Beta 2 to ~1.2GB.)
To avoid this, set "Automatically download updates" to "No" (you will keep the reverse interlinear functionality you already have) or check your update channel (http://community.logos.com/forums/p/13654/105414.aspx#105414) and opt out of the beta programme.
