--- doomlegacy-1.40/doomlegacy_142_src/linux_x/i_video_xshm.c~	Fri Mar 14 03:11:35 2003
+++ doomlegacy-1.40/doomlegacy_142_src/linux_x/i_video_xshm.c	Fri Mar 14 03:11:35 2003
@@ -182,7 +182,9 @@
 // resolution threshold for hires mode
 #define HIRES_HORIZ (640)
 #define HIRES_VERT  (400)
- 
+
+#define MAX_NUM_VIDMODES (100) 
+
 static boolean haveVoodoo = false;
 
 extern consvar_t cv_fullscreen; // for fullscreen support under X and GLX
@@ -197,8 +199,8 @@
 static int lowest_vidmode;
 
 static XF86VidModeModeInfo **vidmodes;
-static char vidModeName[33][32]; // allow 33 different modes
-static int vidmap[33];
+static char vidModeName[MAX_NUM_VIDMODES][32]; // allow MAX_NUM_VIDMODES different modes
+static int vidmap[MAX_NUM_VIDMODES];
 
 // added for 1.27 19990220 by Kin
 rendermode_t    rendermode=render_soft;
@@ -283,7 +285,8 @@
    if(vidmode_ext) {
        // get fullscreen modes
        XF86VidModeGetAllModeLines(X_display, X_screen, &num_fullvidmodes, &vidmodes);
-       num_vidmodes = num_fullvidmodes;
+       num_vidmodes = (num_fullvidmodes > MAX_NUM_VIDMODES)
+                        ? MAX_NUM_VIDMODES : num_fullvidmodes;
        
        // initialize mapping
        for(i=0; i<num_vidmodes; i++) 
@@ -1824,7 +1827,8 @@
     if(haveVoodoo) // nothing to do
         return;
    if(vidmode_ext && cv_fullscreen.value) {
-      num_vidmodes = num_fullvidmodes;
+      num_vidmodes = (num_fullvidmodes > MAX_NUM_VIDMODES)
+                       ? MAX_NUM_VIDMODES : num_fullvidmodes;
 
       // initialize mapping
       for(i=0; i<num_vidmodes; i++)