diff --git a/files/vmm.dll b/files/vmm.dll
index 9ade46f..f183bee 100644
Binary files a/files/vmm.dll and b/files/vmm.dll differ
diff --git a/files/vmm.lib b/files/vmm.lib
index 9ad5dd8..e34a737 100644
Binary files a/files/vmm.lib and b/files/vmm.lib differ
diff --git a/vmm/mm_x86.c b/vmm/mm_x86.c
index 0af452d..5028fac 100644
--- a/vmm/mm_x86.c
+++ b/vmm/mm_x86.c
@@ -45,6 +45,7 @@ VOID MmX86_TlbSpider(_In_ QWORD paDTB, _In_ BOOL fUserOnly)
     PMMX86_TLB_SPIDER_STAGE_INTERNAL pTlbSpiderStage;
     if(!(pTlbSpiderStage = (PMMX86_TLB_SPIDER_STAGE_INTERNAL)LocalAlloc(LMEM_ZEROINIT, sizeof(MMX86_TLB_SPIDER_STAGE_INTERNAL)))) { return; }
     pbPD = VmmTlbGetPageTable(paDTB & 0xfffff000, FALSE);
+    if(!pbPD) { return; }
     for(i = 0; i < 0x1000; i += 8) {
         pte = *(PDWORD)(pbPD + i);
         if(!(pte & 0x01)) { continue; }                 // not valid
diff --git a/vmm/vmm.h b/vmm/vmm.h
index 93e8fb3..d8eaf37 100644
--- a/vmm/vmm.h
+++ b/vmm/vmm.h
@@ -59,7 +59,7 @@ typedef struct tdMEM_IO_SCATTER_HEADER {
 
 #define VMM_VERSION_MAJOR                       1
 #define VMM_VERSION_MINOR                       2
-#define VMM_VERSION_REVISION                    0
+#define VMM_VERSION_REVISION                    1
 
 static const LPSTR VMM_MEMORYMODEL_TOSTRING[4] = { "N/A", "X86", "X86PAE", "X64" };
 
diff --git a/vmm/vmmdll.c b/vmm/vmmdll.c
index 65e9854..12a04f4 100644
--- a/vmm/vmmdll.c
+++ b/vmm/vmmdll.c
@@ -235,7 +235,7 @@ BOOL VMMDLL_InitializeFile(_In_ LPSTR szFileName, _In_opt_ LPSTR szPageTableBase
 _Success_(return)
 BOOL VMMDLL_InitializeFPGA(_In_opt_ LPSTR szMaxPhysicalAddressOpt, _In_opt_ LPSTR szPageTableBaseOpt)
 {
-    return VMMDLL_InitializeReserved(7, (LPSTR[]) { "", "-device", "fpga", "-cr3", (szPageTableBaseOpt ? szPageTableBaseOpt : "0", "-max", szMaxPhysicalAddressOpt) });
+    return VMMDLL_InitializeReserved(7, (LPSTR[]) { "", "-device", "fpga", "-cr3", (szPageTableBaseOpt ? szPageTableBaseOpt : "0"), "-max", (szMaxPhysicalAddressOpt ? szMaxPhysicalAddressOpt : "0") });
 }
 
 _Success_(return)
diff --git a/vmm/vmmvfs.c b/vmm/vmmvfs.c
index 2f57534..6cc1818 100644
--- a/vmm/vmmvfs.c
+++ b/vmm/vmmvfs.c
@@ -320,7 +320,7 @@ BOOL VmmVfsListFilesProcess(_In_ PVMMVFS_PATH pPath, _Inout_ PHANDLE pFileList)
     if(!pProcess) { return FALSE; }
     if(!pProcess->pMemMap || !pProcess->cMemMap) {
         if(!pProcess->fSpiderPageTableDone) {
-            VmmTlbSpider(0, pProcess->fUserOnly);
+            VmmTlbSpider(pProcess->paDTB, pProcess->fUserOnly);
             pProcess->fSpiderPageTableDone = TRUE;
         }
         VmmMapInitialize(pProcess);